Evidence map›Paper›PMID 33450556›Full record

ReviewClinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology2021

Electrical impedance myography: A critical review and outlook.

Benjamin Sanchez, Orjan G Martinsen, Todd J Freeborn, Cynthia M Furse

Abstract readReview
In one paragraph

Review in Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed.

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  5. "Muscle quality": rethinking an imprecise term.European geriatric medicine · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Benjamin SanchezSanchez Research Lab, Department of Electrical and Computer Engineering, University of Utah, Salt Lake City, UT 84112, USA. Electronic address: benjamin.sanchez@utah.edu.
Orjan G MartinsenDepartment of Physics, University of Oslo, 0371 Oslo, Norway; Department of Clinical and Biomedical Engineering, Oslo University Hospital, Oslo 0372, Norway.
Todd J FreebornDepartment of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA.
Cynthia M FurseDepartment of Electrical and Computer Engineering, University of Utah, Salt Lake City, UT 84112, USA.

Funding

Improving ALS Diagnosis using Needle I-EMGR41NS112029 · NINDS · HAYSTACK DIAGNOSTICS, INC. · PI LUPTON, ELMER C, SANCHEZ TERRONES, BENJAMIN · 2019 to 2019
$225k
NINDS NIH HHS R41 NS112029
6 · The paper itself

Abstract

Electrical impedance myography (EIM) technology is finding application in neuromuscular disease research as a tool to assess muscle health. Correlations between EIM outcomes, functional, imaging and histological data have been established in a variety of neuromuscular disorders; however, an analytical discussion of EIM is lacking. This review presents an explanation for clinicians and others who are applying EIM and interpreting impedance outcomes. The background of EIM is presented, including the relation between EIM, volume conduction properties, tissue structure, electrode configuration and conductor volume. Also discussed are technical considerations to guide the reader to critically evaluate EIM and understand its limitations and strengths.

Indexed as

Electric ImpedanceAnimalsElectromyographyHumansMuscle, SkeletalElectrical impedance myographyMuscleNear- and far-field potentialsVolume conduction properties

Identifiers

PMID33450556
PMCPMC7880888

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.